Microstructure, Thermal and Mechanical Properties of Non-Isothermally Annealed Al-Sc-Zr and Al-Mn-Sc-Zr Alloys Prepared by Powder Metallurgy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10126553" target="_blank" >RIV/00216208:11320/12:10126553 - isvavai.cz</a>

Result on the web

<a href="http://przyrbwn.icm.edu.pl/APP/PDF/122/a122z3p04.pdf" target="_blank" >http://przyrbwn.icm.edu.pl/APP/PDF/122/a122z3p04.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Microstructure, Thermal and Mechanical Properties of Non-Isothermally Annealed Al-Sc-Zr and Al-Mn-Sc-Zr Alloys Prepared by Powder Metallurgy

Original language description

This paper reports results of a study aimed at understanding the precipitation processes occurring during the annealing of two Al-Sc-Zr-based alloys with and without Mn prepared by powder metallurgy with subsequent hot extrusion at 350 degrees C. Sampleswere isochronally annealed up to approximate to 570 degrees C. Precipitation behaviour was studied by electrical resistometry and differential scanning calorimetry. Mechanical properties were monitored by microhardness HV1 measurements. Transmission electron microscopy examinations and X-ray diffraction of specimens quenched from temperatures of significant resistivity changes helped to identify the microstructural processes responsible for these changes. Fine (sub)grain structure develops and fine coherent Al3Sc and/or Al-3(Sc,Zr) particles precipitate during extrusion in both alloys. The distinct changes in resistivity (at temperatures above approximate to 330 degrees C) of the Al-Mn-Sc-Zr alloy are mainly caused by precipitation of

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GPP107%2F11%2FP201" target="_blank" >GPP107/11/P201: The use of both precipitation and recrystallization in preparation of Al-based alloys with tailored properties</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta Physica Polonica A

ISSN

0587-4246

e-ISSN

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Volume of the periodical

122

Issue of the periodical within the volume

3

Country of publishing house

PL - POLAND

Number of pages

5

Pages from-to

439-443

UT code for WoS article

000309019200005

EID of the result in the Scopus database

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